The OP reads like I wrote it -- green brake fluid, yes! -- except I bought the '95 E300 in March, not June. Wonder what brand is green? Querty is right, I'll be flushing the fluid soon. My personal preference is for clear fluids as then you can tell when they're dirty, contaminated, or just "old."

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970